Turbo detection for MIMO-OFDM underwater acoustic communications

被引：20

作者：

Tao J. ^{[1
]}

Zheng Y.R. ^{[2
]}

机构：

[1] Qualcomm Inc., Boulder

[2] Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla

来源：

International Journal of Wireless Information Networks | 2013年 / 20卷 / 01期

基金：

美国国家科学基金会;

关键词：

Multiple-input multiple-output (MIMO); Orthogonal frequency division multiplexing (OFDM); Turbo detection; Underwater acoustic communication;

D O I：

10.1007/s10776-012-0182-4

中图分类号：

学科分类号：

摘要：

An experimental investigation on turbo detection for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) underwater acoustic communications, is presented in this paper. In our detection scheme, the linear symbol estimation benefits from a hybrid soft interference cancelation and a reliability-based detection ordering enabled by the a priori information at the equalizer input. The proposed MIMO-OFDM detector is tested by field trial data collected in the SPACE08 and the ACOMM10 undersea acoustic communication experiments, where convolutional code was adopted in SPACE08 and binary low-density parity-check (LDPC) code was used in ACOMM10. Experimental results show that for both sets of trial data, turbo detection achieves much better performance than the conventional non-iterative detection. Moreover, the results provide guidance on the selection of system parameters including the subcarrier number, the iteration numbers for both the turbo equalization and the LDPC decoding, for achieving a good complexity-performance tradeoff. © 2012 Springer Science+Business Media, LLC.

引用

页码：27 / 38

页数：11

共 24 条

[1]

Bejjani E., Belfiore J.C., Multicarrier coherent communications for the underwater acoustic channel, Proc. MTS/IEEE OCEANS Conf., 3, pp. 1125-1130, (1996)

[2]

Zakharov Y.V., Kodanev V.P., Multipath-Doppler diversity of OFDM signals in an underwater acoustic channel, Proc. IEEE Int. Conf. Acoust. Speech Signal Process., 5, pp. 2941-2944, (2000)

[3]

Stojanovic M., Low complexity OFDM detector for underwater channels, Proc. MTS/IEEE OCEANS Conf., (2006)

[4]

Ormondroyd R.F., A robust underwater acoustic communication system using OFDM-MIMO, Proc. MTS/IEEE OCEANS Conf., (2007)

[5]

Li B., Zhou S., Stojanovic M., Freitag L., Willett P., Multicarrier communication over underwater acoustic channels with nonuniform Doppler shifts, IEEE Journal of Oceanic Engineering, 33, 2, pp. 198-209, (2008)

[6]

Leus G., Walree P.V., Multiband OFDM for covert acoustic communications, IEEE Journal on Selected Areas in Communications, 26, 9, pp. 1662-1673, (2008)

[7]

Berger C.R., Chen W., Zhou S., Huang J., A simple and effective noise whitening method for underwater acoustic orthogonal frequency division multiplexing, Journal of the Acoustical Society of America, 127, 4, pp. 2358-2367, (2010)

[8]

Tao J., Wu J., Zheng Y.R., Xiao C., Oversampled OFDM detector for MIMO underwater acoustic communications, Proc. MTS/IEEE OCEANS Conf., (2010)

[9]

Tu K., Fertonani D., Duman T.M., Stojanovic M., Proakis J.G., Hursky P., Mitigation of intercarrier interference for OFDM over time-varying underwater acoustic channels, IEEE Journal of Oceanic Engineering, 36, 2, pp. 156-171, (2011)

[10]

Tao J., Zheng Y.R., Xiao C., Yang T.C., Yang W.B., Channel equalization for single carrier MIMO underwater acoustic communications, EURASIP Journal on Advances in Signal Processing, 2010, (2010)

← 1 2 3 →